Magellan MARS-1-2-4-6, Руководство пользователя

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3.5Antenna Maintenance (Tuning)
Antennas may require periodic re-tuning and testing. Detuning of an
antenna may occur if physical environment around the antenna is changed.
For example when large metal objects are located near the antenna or
electronic devices or cables are placed in close proximity with the antenna.
The severity of detuning is dependent upon the size of the metal object and
can only be determined by measurement.
Before tuning make sure that metal objects, electronic devices and cables
are not closer that the recommended distances in any direction from the
antenna.
The purpose of the tuning procedure is to maintain an antenna at its correct
operating point. Tuning the antenna means to trim it to its highest possible
field strength which corresponds to the highest voltage as measured by a
voltmeter with an Antenna Tuning Probe.
Contact Magellan for further instructions for your specific application.
Equipment and Software Required for Antenna Tuning and Testing

1 x Antenna Tuning Probe with cable (Magellan Antenna Tuning Kit)

1 x RF Trimming Tool (Magellan Antenna Tuning Kit)
Antenna Tuning Kit: Antenna Tuning Probe with a cable and RF Trimming Tool

1 x Universal Digital Voltmeter (to measure DC voltages between 1
and 15 volts)

ReaderManager software– V2.05 or better

1 x Tag (fully powered tag)
Tuning Instructions
1. Connect the Antenna Tuning Probe terminals to the voltage and
input terminals of the digital voltmeter.
2. Set the voltmeter to measure a DC voltage range greater than 10
volts.
3. Place the Antenna Tuning Probe in the center of the antenna.
4. Using an RF trimming tool adjust the tuning capacitor on the
antenna for maximum voltage as measured by the tuning probe.
MARS-1-2-4-6 USER MANUAL 64-70-017-DOC ver.1 16